Headset



FIG. 1 is a front view of a headset showing our new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a perspective front view thereof;

FIG. 4 is a perspective rear view thereof;

FIG. 5 is a right side view thereof, the undisclosed portion is not part of the claimed design;

FIG. 6 is a left side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof. 

The ornamental design for a headset, as shown and described. 